<template>
	<div>
		<!-- 面包屑 -->
		<el-breadcrumb separator-class="el-icon-arrow-right">
			<el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
			<el-breadcrumb-item>权限管理</el-breadcrumb-item>
			<el-breadcrumb-item>角色列表</el-breadcrumb-item>
		</el-breadcrumb>
		<!-- 卡片视图 -->
		<el-card>
			<!-- 添加角色 -->
			<el-row>
				<el-col><el-button type="primary" @click="addRDialogVisible = true">添加角色</el-button></el-col>
			</el-row>
			<!-- 角色列表 -->
			<el-table :data="roleList" border stripe>
				<!-- 展开列 -->
				<el-table-column type="expand">
					<template v-slot="scope">
						<el-row :class="['el-row-borderBottom', i1 === 0 ? 'el-row-borderTop' : '']" v-for="(item1, i1) in scope.row.children" :key="item1.id">
							<!-- 一级权限 -->
							<el-col :span="5">
								<el-tag closable @close="removeRightById(scope.row, item1.id)">{{ item1.authName }}</el-tag>
								<i class="el-icon-caret-right"></i>
							</el-col>
							<!-- 二级和三级权限 -->
							<el-col :span="19">
								<el-row :class="[i2 === 0 ? '' : 'el-row-borderTop']" v-for="(item2, i2) in item1.children" :key="item2.id">
									<el-col :span="6">
										<el-tag type="success" closable @close="removeRightById(scope.row, item2.id)">{{ item2.authName }}</el-tag>
										<i class="el-icon-caret-right"></i>
									</el-col>
									<el-col :span="18">
										<el-tag type="warning" v-for="(item3, i3) in item2.children" :key="item3.id" closable @close="removeRightById(scope.row, item3.id)">
											{{ item3.authName }}
										</el-tag>
									</el-col>
								</el-row>
							</el-col>
						</el-row>
					</template>
				</el-table-column>
				<!-- 索引列 -->
				<el-table-column type="index" label="#"></el-table-column>
				<el-table-column label="角色名称" prop="roleName"></el-table-column>
				<el-table-column label="角色描述" prop="roleDesc"></el-table-column>
				<el-table-column label="操作" width="300">
					<template v-slot="scope">
						<!-- 修改 -->
						<el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditRDialog(scope.row.id)">编辑</el-button>
						<!-- 删除 -->
						<el-button type="danger" icon="el-icon-delete" size="mini" @click="removeRolesById(scope.row.id)">删除</el-button>
						<!-- 分配 -->
						<el-button type="warning" icon="el-icon-setting" size="mini" @click="showSetRightDialog(scope.row)">分配权限</el-button>
					</template>
				</el-table-column>
			</el-table>
		</el-card>
		<!-- 添加角色对话框 -->
		<el-dialog title="添加角色" :visible.sync="addRDialogVisible" width="50%" @close="addRolesDialogClosed">
			<!-- 内容主体-->
			<el-form :model="addRolesForm" :rules="addRolesFormRules" ref="addRolesFormRef" label-width="80px">
				<el-form-item label="角色名称" prop="roleName"><el-input v-model="addRolesForm.roleName"></el-input></el-form-item>
				<el-form-item label="角色描述" prop="roleDesc"><el-input v-model="addRolesForm.roleDesc"></el-input></el-form-item>
			</el-form>
			<!-- 底部-->
			<span slot="footer" class="dialog-footer">
				<el-button @click="addRDialogVisible = false">取 消</el-button>
				<el-button type="primary" @click="addRoles">确 定</el-button>
			</span>
		</el-dialog>

		<!-- 修改用户对话框 -->
		<el-dialog title="修改角色" :visible.sync="editRDialogVisible" width="50%" @close="editRolesDialogClosed">
			<!-- 角色名称 -->
			<el-form :model="editRolesForm" :rules="editRolesFormRules" ref="editRolesFormRef" label-width="80px">
				<el-form-item label="角色名称" prop="roleName"><el-input v-model="editRolesForm.roleName"></el-input></el-form-item>
			</el-form>
			<!-- 角色描述-->
			<el-form :model="editRolesForm" :rules="editRolesFormRules" ref="editRolesFormRef" label-width="80px">
				<el-form-item label="角色描述" prop="roleDesc"><el-input v-model="editRolesForm.roleDesc"></el-input></el-form-item>
			</el-form>
			<!-- 按钮-->
			<span slot="footer" class="dialog-footer">
				<el-button @click="editRDialogVisible = false">取 消</el-button>
				<el-button type="primary" @click="edidRolesInfo">确 定</el-button>
			</span>
		</el-dialog>
		<!-- 分配权限对话框 -->
		<el-dialog title="分配权限" :visible.sync="setRightDialogVisible" width="50%">
			<!-- 树形控件 -->
			<el-tree :data="rightsList" :props="treeProps" show-checkbox node-key="id" default-expand-all :default-checked-keys="defKeys" ref="treeRef"></el-tree>
			<span slot="footer" class="dialog-footer">
				<el-button @click="setRightDialogVisible = false">取 消</el-button>
				<el-button type="primary" @click="allotRights">确 定</el-button>
			</span>
		</el-dialog>
	</div>
</template>

<script>
export default {
	data() {
		return {
			//所有角色列表数据
			roleList: [],
			addRDialogVisible: false,
			addRolesForm: {
				roleName: '',
				roleDesc: ''
			},
			addRolesFormRules: {
				roleName: [{ required: true, message: '请输入角色名称', trigger: 'blur' }, { min: 1, max: 10, message: '角色名称长度在 1 到 10 个字符', trigger: 'blur' }],
				roleDesc: [{ required: true, message: '请输入角色描述', trigger: 'blur' }, { min: 2, max: 10, message: '角色描述长度在 2 到 10 个字符', trigger: 'blur' }]
			},
			editRDialogVisible: false,
			editRolesForm: {},
			editRolesFormRules: {
				roleName: [{ required: true, message: '请输入角色名称', trigger: 'blur' }, { min: 1, max: 10, message: '角色名称长度在 1 到 10 个字符', trigger: 'blur' }],
				roleDesc: [{ required: true, message: '请输入角色描述', trigger: 'blur' }, { min: 2, max: 10, message: '角色描述长度在 2 到 10 个字符', trigger: 'blur' }]
			},
			// 分配权限对话框
			setRightDialogVisible: false,
			//所有权限的数据
			rightsList: [],
			//树形控件的绑定对象
			treeProps: {
				label: 'authName',
				children: 'children'
			},
			defKeys: [],
			roleId: ''
		};
	},
	created() {
		this.getRolesList();
	},
	methods: {
		async getRolesList() {
			const { data: res } = await this.$http.get('roles');
			if (res.meta.status !== 200) {
				return this.$message.error('获取角色列表失败');
			}
			this.roleList = res.data;
			console.log(this.roleList);
		},
		addRoles() {
			this.$refs.addRolesFormRef.validate(async v => {
				if (!v) return;

				const { data: res } = await this.$http.post('roles', this.addRolesForm);
				if (res.meta.status !== 201) {
					return this.$message.error('添加角色失败');
				}
				this.$message.success('添加角色成功！');
				this.addRDialogVisible = false;
				this.getRolesList();
			});
		},
		addRolesDialogClosed() {
			this.$refs.addRolesFormRef.resetFields();
		},

		async showEditRDialog(id) {
			const { data: res } = await this.$http.get('roles/' + id);
			if (res.meta.status !== 200) {
				return this.$message.error('查询用户失败');
			}
			this.editRolesForm = res.data;
			this.editRDialogVisible = true;
		},
		editRolesDialogClosed() {
			this.$refs.editRolesFormRef.resetFields();
		},
		edidRolesInfo() {
			console.log(this.editRolesForm.id);
			this.$refs.editRolesFormRef.validate(async v => {
				if (!v) return;
				const { data: res } = await this.$http.put('roles/' + this.editRolesForm.roleId, { roleName: this.editRolesForm.roleName, roleDesc: this.editRolesForm.roleDesc });
				console.log(res);
				if (res.meta.status !== 200) {
					return this.$message.error('更新角色失败');
				}
				this.$message.success('更新角色成功！');
				this.editRDialogVisible = false;
				this.getRolesList();
			});
		},
		async removeRolesById(id) {
			const confirmResult = await this.$confirm('此操作将永久删除该角色, 是否继续?', '提示', {
				confirmButtonText: '确定',
				cancelButtonText: '取消',
				type: 'warning'
			}).catch(err => err);
			if (confirmResult !== 'confirm') {
				return this.$message.info('已取消删除');
			}
			const { data: res } = await this.$http.delete('roles/' + id);
			if (res.meta.status !== 200) {
				return this.$message.error('删除用户失败');
			}
			this.$message.success('删除用户成功！');
			this.getRolesList();
		},
		//根据id删除对应的权限
		async removeRightById(role, id) {
			//弹框提示用户是否删除
			const confirmResult = await this.$confirm('此操作将永久删除该权限, 是否继续?', '提示', {
				confirmButtonText: '确定',
				cancelButtonText: '取消',
				type: 'warning'
			}).catch(err => err);
			if (confirmResult !== 'confirm') {
				return this.$message.info('取消了删除');
			}
			const { data: res } = await this.$http.delete(`roles/${role.id}/rights/${id}`);
			if (res.meta.status !== 200) return this.$message.error('删除权限失败');
			role.children = res.data;
		},
		async showSetRightDialog(role) {
			this.roleId = role.id;
			const { data: res } = await this.$http.get('rights/tree');
			if (res.meta.status !== 200) return this.$message.error('获取权限数据失败');
			//获取权限数据保存到rightLists
			this.rightsList = res.data;
			this.defKeys.length = 0;
			this.getLeafKeys(role, this.defKeys);
			this.setRightDialogVisible = true;
		},
		//递归 获取三级权限的id 保存在this.defKeys
		getLeafKeys(node, arr) {
			if (!node.children) {
				return arr.push(node.id);
			}
			node.children.forEach(item => this.getLeafKeys(item, arr));
		},
		//点击为角色分配权限
		async allotRights() {
			const keys = [...this.$refs.treeRef.getCheckedKeys(), ...this.$refs.treeRef.getHalfCheckedKeys()];
			// console.log(keys);
			const idStr = keys.join(',');
			const { data: res } = await this.$http.post(`roles/${this.roleId}/rights`, { rids: idStr });
			if (res.meta.status !== 200) return this.$message.error('分配权限失败');
			this.$message.success('分配权限成功');
			this.getRolesList();
			this.setRightDialogVisible = false;
		}
	}
};
</script>

<style scoped>
.el-tag {
	margin: 0.4375rem;
}
.el-row-borderTop {
	border-top: 1px solid #eee;
}

.el-row-borderBottom {
	border-bottom: 1px solid #eee;
}
.el-row {
	display: flex;
	align-items: center;
}
</style>
